Duramax First Generation: 2001-2004 (LB7)
Alright, another lb7 injector question. I have a 2002 Chevy Silverado 2500hd with the lb7 Duramax and 130,000 thousand miles, s&b cold air intake, bigger/louder exhaust, but stock fuel pump and filter set up.
My truck does have some sort of tuning:
setting one = stock
two = tow heavy
three =...